Optimal Memory Cards for x100s?

I've just purchased an x100s and wonder about memory cards. The author of Mastering the Art of the Fujifilm X-Pro 1 says that he and many of his colleagues recommend the fastest card available (95 MB/s I think). He says, that especially for bracketing function this is useful. The local camera store guys (Glazers in Seattle) say that there is no advantage to these super fast cards, except for shooting hi-def video. I'm probably not going to do much hi-def video. Do you all believe that the fastest cards are useful for still shooting?